Home / 90,345.48-124,681.04-54,534.74

Finding the Fourth Proportional to 90,345.48, 124,681.04 and 54,534.74

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Solution

The fourth proportional to 90,345.48, 124,681.04 and 54,534.74 is: 75,260.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,345.48 : 124,681.04 = 54,534.74 : x
  2. Step 2: Convert to fraction form
    90,345.48/124,681.04 = 54,534.74/x
  3. Step 3: Cross multiply
    90,345.48x = 124,681.04 × 54,534.74
  4. Step 4: Simplify right side
    90,345.48x = 6,799,447,407.76
  5. Step 5: Solve for x
    x = 6,799,447,407.76/90,345.48
  6. Step 6: Final answer
    x = 75,260.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.